65706980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{809}}^1$

素因数の和:980

約数の個数: 48

約数和(自身を含む): 143700480

約数和(自身を除く): 77993500

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 131, 155, 262, 310, 524, 620, 655, 809, 1310, 1618, 2620, 3236, 4045, 4061, 8090, 8122, 16180, 16244, 20305, 25079, 40610, 50158, 81220, 100316, 105979, 125395, 211958, 250790, 423916, 501580, 529895, 1059790, 2119580, 3285349, 6570698, 13141396, 16426745, 32853490, 65706980]

約数ペア:

[(1, 65706980), (2, 32853490), (4, 16426745), (5, 13141396), (10, 6570698), (20, 3285349), (31, 2119580), (62, 1059790), (124, 529895), (131, 501580), (155, 423916), (262, 250790), (310, 211958), (524, 125395), (620, 105979), (655, 100316), (809, 81220), (1310, 50158), (1618, 40610), (2620, 25079), (3236, 20305), (4045, 16244), (4061, 16180), (8090, 8122)]